Window construction.



w. 315mm,. WINDOW CONSTRUCTION.

APYLIUATIOH FILED APB-28, 1909.

Patented Jan. 24, 1911.

ATTORNEY.

the character referred to Whereit is have illustrated an UNITED STATES PATENT OFFICE.

WILLIAM ELMEB, J'Ba, 0F PITTSBURG, PENNSYLVANIA.

WINDOW CONSTRUCTION.

Specification of Letters Patent.

Patented Jan. 24, 1911.

Original application filed July 26, 1907, Serial No. 385,644. Divided and this application filed April 26, 1909. Serial No. 492,208.

To all whom it may concern:

Be it knownthat I, WILLIAM ELMER, J r., a citizen of the United States of America, residing in Pittsburg, in the county of Allegheny, in the State of Pennsylvania, have invented a certain new and useful Improvement in Window Construction, of which the following is a true and.exact description, reference being had to the accom anying drawings, which form a part thereo My present invention relates to window frame constructions and particularly to window frame constructions for factory and other large buildings, and the object of the present invention is to provide a simple and eifective metallic window frame constructlon particularly adapted for use in buildin s of earable to use more than a single pair of sashes for each window opening.

The window frame construction claimed herein is especially adapted for use with the particular sash balancing arrangement disclosed herein but claimed in my prior application, Serial No. 385,644, filed July 26th, 1907, of which this application is a division.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of my invention, however, and the advantages possessed by it, reference may be had to the accompanying drawings and descri tive matter in which I described one of the forms in which my invention may be embodied.

Of the drawings, Figure 1 is an elevation of a side of a building showing the frame for one window opening and a portion of an adjacent opening. Fig. 2 is a sectional elevation taken on the line 2-2 of Fig. 1. Fig. 3 is a sectional elevation taken on the line 33 of Fig. 5. Fig. 4 is a sectional elevation taken on the line 44 of Fig. 5 but with the top sash down from its closed position, and, Fig. 5 is a view taken similarly to Fig. 2, showing a portion only of the structure there shown but on a larger scale.

In the construction shown in the drawings, the window frame for each window openin is formed by vertical frame members A an top frame members B and B, and bottom frame members 0. The frame members A shown best in Fig. 4, are in the form of metal I beams of commercial form and having the usual beveled flanges A, and referably parts B, B, and C are formed 0 metal. Guidcways for four sashes, E, E, E, and E", are formed by the flanges A of the side members A and spacing rlbs F, preferably of metal, secured to the web of the I beam A by bolts F As shown in Fig. 4, where window openings are side by side, the bolts F may pass through the web and secure in place not only the ribs F for one set of sashes but also the ribs F for the' adjacent set.

The sashes E, E, E, and E, which may be of the usual construction, are connected together in airs lay flexible cords or chains G and G f stene to screws H secured to the sashes. The upper and lower sashes E and E being connected by the chains G, and the intermediate sashes E and E by the chains G. Each chain G passes over a pair of guides or pulleys G located at the upper end of the window opening, one adjacent each flange A of the I beam A. Similarl the cord G passes over a guide or pulley having its center located above the middle rib F. The pintles G for the guide rolls are journaled in plates Gr secured to the web of the beams A by bolts Gr and suitable spacers. As shown in Fig. 4, the sashes E and E working in the guide ways adjacent the I beam flanges are beveled to correspond to the bevel of the flanges A.

By this arrangement it will be observedthat each of the sashes may be moved to the desired cleaning or repair level; for instance under ordinary circumstances to the leve occupied in Fig. 1 by the sash E. As the window frames-are formed of metal they are very durable and are not liable to warp out of shape.

One of the advantages of the window frame construction is found in the effective use which it permits of commercial forms of metal bars, thus cheapening and facilitating the manufacture of the frames.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. The combination in a window frame adapted to receive a plurality of movable window sashes in its window opening, of I 'beams having the usual beveled flanges at opposite sides of the window opening, a rib or ribs secured to the web of each of said I beams, and with the flanges of the beam forming guide ways for the window sashes, of sashes working in said guide wa s, the sashes working in the guide ways a acent the flanges of the I beams be ng beveled to correspond to the bevel of sand flanges.

2. The combination in a window frame provided with a plurality of window openings and adapted to receive a plurality of movable window sashes in each opening, of an- I beam separating an adjacent pair of window openlngs, and ribs secured to the opposite sides of the web of said beam and with the flanges of the beam forming guide ways for the window sashes in the window openings at the two sides of the I beam.

3. A window frame having its sides a flexible counterbalancing connection between each sash and-another sash, and guide rolls for the flexible connections secured to the I beams at the up er end of the window frame, the sashes worEing in the guide ways adjacent the I beam flanges being beveled to correspond to the bevel of said flanges.

WILLIAM ELMER, JR. Witnesses:

H. J. HARDMAN, A. G. SHARRA. 

